Detailed configuration
Adopt imported Cummins turbocharging engine , three level control
CE standard .Centralized lubricating system .
 
Advantages
Adopt imported Cummins turbocharging engine, strong and powerful.
Adopt Single rope winding lord ,solve the problem of abrasion of the steel wire rope.
Adopt Triangle luffing mechanism .
 
 

Main technical parameters of XR320D
NO.	Name		Unit	Parameters
1	Max. drilling diameter		mm	φ2500
2	Max. drilling depth		m	77(5-section of fricative) (standard) 62(4-section of mechanical interlock)(optional) 92 (6-section of fricative)　　 102(6-section of fricative type)(specific designed)
3	Safe operation range(from rotarying centre)		mm	4240～4980
4	Dimension in working condition(L×W×H)		mm	11000×4800×24586
5	Dimension in transportation condition(L×W×H)		mm	Open transport
6	Overall drilling weight(drilling tools not included)		t	90
7	Engine	Engine model		CUMMINS QSM11-C400
		Engine rated power/rotary speed	kW	298 /(2100r/min)
8	Hydrulic system	Max. pressure	Mpa	33
		Max. pressure of vice pump	Mpa	30
9	Rotary drive	Max.output torque	kN.m	360
		Rotary speed	rpm	6～20
10	Pull-Down cylinder	Max. cylinder pressure	kN	240
		Max. cylinder lifting force	kN	220
		Max. cylinder stroke	mm	6000
11	Main winch	Max. pulling force	kN	320
		Max. wire speed	m/min	72
12	Auxiliary winch	Max. pulling force	kN	100
		Max. wire speed	m/min	65
13	Mast	Left/ right Side	°	4/4
		Forwards	°	5/15
14	Slewing bearing	Slewing bearing angle	km/h	360
15	Runing	Max. complete device running speed	%	1.5
		Max. complete device grade ability		35
16	Track	Track width	mm	800
		Outside width(min-max)	mm	3500～4800
		Distance between two wheels longitudinally	mm	5484
		Average grouning specific pressure	KPa	105.5